4252431424545 has 24 divisors (see below), whose sum is σ = 7370995156200. Its totient is φ = 2267928343296.

The previous prime is 4252431424529. The next prime is 4252431424601. The reversal of 4252431424545 is 5454241342524.

4252431424545 is a `hidden beast` number, since 4 + 2 + 52 + 4 + 3 + 142 + 454 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1903298919201 + 2349132505344 = 1379601^2 + 1532688^2 .

It is not a de Polignac number, because 4252431424545 - 2⁴ = 4252431424529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4252431424545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2353501 + ... + 3747509.

It is an arithmetic number, because the mean of its divisors is an integer number (307124798175).

Almost surely, 2^{4252431424545} is an apocalyptic number.

4252431424545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4252431424545 is a deficient number, since it is larger than the sum of its proper divisors (3118563731655).

4252431424545 is a wasteful number, since it uses less digits than its factorization.

4252431424545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461809 (or 1461806 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 45.

The spelling of 4252431424545 in words is "four trillion, two hundred fifty-two billion, four hundred thirty-one million, four hundred twenty-four thousand, five hundred forty-five".